WASHINGTON — The United States is facing an epidemic of lethal overdoses from prescription painkillers, which have tripled in the past decade and now account for more deaths than heroin and cocaine combined. The quantity of painkillers on the...

CHICAGO — The US government Wednesday denied it was hampering the case of an alleged senior member of the Sinaloa cartel by refusing to hand over top secret data on the American fight against drug-trafficking. Jesus Vicente Zambada-Niebla, son...